Do you know what this little blue injection is? It's called GHK Cu aka the Glow Peptide I've always believed in peptides for skincare, but honestly I never thought about Subcutaneous Injection Sites and Instructions for Safe Self Administration Buy GHK Cu Cream 0.5% Copper Peptide Pure, Potent, USA Made If your GHK injection site gets irritated try this , 1. Dilute it by adding more water to the syringe , 2. Let it sit until it reaches room temperature , Also, make sure youre rotating injection GHK Cu Peptide: Benefits for Tissue Repair, Healing, and Recovery Revolution Health & Wellness